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CN105800750A 重金属废水处理方法和设备 无效 - 撤回

重金属废水处理方法和设备
摘要：
本发明涉及一种重金属废水处理方法和设备。该重金属废水处理方法包括以下步骤：将重金属废水经过化学沉淀法加入基础药剂和辅助药剂进行反应；获得经过反应后沉淀的包括重金属离子和残留辅助药剂的污泥；将该污泥的一部分溶解到未经处理的重金属废水中；以及将溶解了污泥的重金属废水再经过化学沉淀法进行反应。本发明的重金属废水处理方法，可以减少污泥量和辅助药剂添加量。
摘要（英）：

The invention relates to a heavy metal waste water treatment method and device. The method comprises that based on a chemical precipitation method, a basic agent and an auxiliary agent are added into heavy metal waste water, the mixture undergoes a reaction to obtain sludge containing heavy metal ions and the residual auxiliary agent, a part of the sludge is dissolved in the untreated heavy metal waste water and the heavy metal waste water with the sludge undergoes a reaction based on a chemical precipitation method. The heavy metal waste water treatment method can reduce a sludge amount and an auxiliary agent use amount.

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